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<h2><span class="refentrytitle"><a name="GtkTreeModel.top_of_page"></a>GtkTreeModel</span></h2>
<p>GtkTreeModel — The tree interface used by GtkTreeView</p>
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<div class="refsect1">
<a name="GtkTreeModel.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_proto_type">
<col class="functions_proto_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GtkTreeModel.html#GtkTreeModelForeachFunc" title="GtkTreeModelForeachFunc ()">*GtkTreeModelForeachFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-new" title="gtk_tree_path_new ()">gtk_tree_path_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-new-from-string" title="gtk_tree_path_new_from_string ()">gtk_tree_path_new_from_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-new-from-indices" title="gtk_tree_path_new_from_indices ()">gtk_tree_path_new_from_indices</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-new-from-indicesv" title="gtk_tree_path_new_from_indicesv ()">gtk_tree_path_new_from_indicesv</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gchar</span> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-to-string" title="gtk_tree_path_to_string ()">gtk_tree_path_to_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-new-first" title="gtk_tree_path_new_first ()">gtk_tree_path_new_first</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-append-index" title="gtk_tree_path_append_index ()">gtk_tree_path_append_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-prepend-index" title="gtk_tree_path_prepend_index ()">gtk_tree_path_prepend_index</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-get-depth" title="gtk_tree_path_get_depth ()">gtk_tree_path_get_depth</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-get-indices" title="gtk_tree_path_get_indices ()">gtk_tree_path_get_indices</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-get-indices-with-depth" title="gtk_tree_path_get_indices_with_depth ()">gtk_tree_path_get_indices_with_depth</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-free" title="gtk_tree_path_free ()">gtk_tree_path_free</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-copy" title="gtk_tree_path_copy ()">gtk_tree_path_copy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-compare" title="gtk_tree_path_compare ()">gtk_tree_path_compare</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-next" title="gtk_tree_path_next ()">gtk_tree_path_next</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-prev" title="gtk_tree_path_prev ()">gtk_tree_path_prev</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-up" title="gtk_tree_path_up ()">gtk_tree_path_up</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-down" title="gtk_tree_path_down ()">gtk_tree_path_down</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-is-ancestor" title="gtk_tree_path_is_ancestor ()">gtk_tree_path_is_ancestor</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-path-is-descendant" title="gtk_tree_path_is_descendant ()">gtk_tree_path_is_descendant</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="returnvalue">GtkTreeRowReference</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-new" title="gtk_tree_row_reference_new ()">gtk_tree_row_reference_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="returnvalue">GtkTreeRowReference</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-new-proxy" title="gtk_tree_row_reference_new_proxy ()">gtk_tree_row_reference_new_proxy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="returnvalue">GtkTreeModel</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-get-model" title="gtk_tree_row_reference_get_model ()">gtk_tree_row_reference_get_model</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-get-path" title="gtk_tree_row_reference_get_path ()">gtk_tree_row_reference_get_path</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-valid" title="gtk_tree_row_reference_valid ()">gtk_tree_row_reference_valid</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-free" title="gtk_tree_row_reference_free ()">gtk_tree_row_reference_free</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="returnvalue">GtkTreeRowReference</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-copy" title="gtk_tree_row_reference_copy ()">gtk_tree_row_reference_copy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-inserted" title="gtk_tree_row_reference_inserted ()">gtk_tree_row_reference_inserted</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-deleted" title="gtk_tree_row_reference_deleted ()">gtk_tree_row_reference_deleted</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-reordered" title="gtk_tree_row_reference_reordered ()">gtk_tree_row_reference_reordered</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="returnvalue">GtkTreeIter</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-iter-copy" title="gtk_tree_iter_copy ()">gtk_tree_iter_copy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-iter-free" title="gtk_tree_iter_free ()">gtk_tree_iter_free</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreeModelFlags" title="enum GtkTreeModelFlags"><span class="returnvalue">GtkTreeModelFlags</span></a>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-flags" title="gtk_tree_model_get_flags ()">gtk_tree_model_get_flags</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-n-columns" title="gtk_tree_model_get_n_columns ()">gtk_tree_model_get_n_columns</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">GType</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-column-type" title="gtk_tree_model_get_column_type ()">gtk_tree_model_get_column_type</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-iter" title="gtk_tree_model_get_iter ()">gtk_tree_model_get_iter</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-iter-from-string" title="gtk_tree_model_get_iter_from_string ()">gtk_tree_model_get_iter_from_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-iter-first" title="gtk_tree_model_get_iter_first ()">gtk_tree_model_get_iter_first</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-path" title="gtk_tree_model_get_path ()">gtk_tree_model_get_path</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-value" title="gtk_tree_model_get_value ()">gtk_tree_model_get_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-iter-next" title="gtk_tree_model_iter_next ()">gtk_tree_model_iter_next</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-iter-previous" title="gtk_tree_model_iter_previous ()">gtk_tree_model_iter_previous</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-iter-children" title="gtk_tree_model_iter_children ()">gtk_tree_model_iter_children</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-iter-has-child" title="gtk_tree_model_iter_has_child ()">gtk_tree_model_iter_has_child</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gint</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-iter-n-children" title="gtk_tree_model_iter_n_children ()">gtk_tree_model_iter_n_children</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-iter-nth-child" title="gtk_tree_model_iter_nth_child ()">gtk_tree_model_iter_nth_child</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gboolean</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-iter-parent" title="gtk_tree_model_iter_parent ()">gtk_tree_model_iter_parent</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">gchar</span> *
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-string-from-iter" title="gtk_tree_model_get_string_from_iter ()">gtk_tree_model_get_string_from_iter</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-ref-node" title="gtk_tree_model_ref_node ()">gtk_tree_model_ref_node</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-unref-node" title="gtk_tree_model_unref_node ()">gtk_tree_model_unref_node</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get" title="gtk_tree_model_get ()">gtk_tree_model_get</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-valist" title="gtk_tree_model_get_valist ()">gtk_tree_model_get_valist</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-foreach" title="gtk_tree_model_foreach ()">gtk_tree_model_foreach</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-row-changed" title="gtk_tree_model_row_changed ()">gtk_tree_model_row_changed</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-row-inserted" title="gtk_tree_model_row_inserted ()">gtk_tree_model_row_inserted</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-row-has-child-toggled" title="gtk_tree_model_row_has_child_toggled ()">gtk_tree_model_row_has_child_toggled</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-row-deleted" title="gtk_tree_model_row_deleted ()">gtk_tree_model_row_deleted</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-rows-reordered" title="gtk_tree_model_rows_reordered ()">gtk_tree_model_rows_reordered</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GtkTreeModel.html#gtk-tree-model-rows-reordered-with-length" title="gtk_tree_model_rows_reordered_with_length ()">gtk_tree_model_rows_reordered_with_length</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkTreeModel.signals"></a><h2>Signals</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="signal_proto_type">
<col width="300px" class="signal_proto_name">
<col width="200px" class="signal_proto_flags">
</colgroup>
<tbody>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GtkTreeModel.html#GtkTreeModel-row-changed" title="The “row-changed” signal">row-changed</a></td>
<td class="signal_flags">Run Last</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GtkTreeModel.html#GtkTreeModel-row-deleted" title="The “row-deleted” signal">row-deleted</a></td>
<td class="signal_flags">Run First</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GtkTreeModel.html#GtkTreeModel-row-has-child-toggled" title="The “row-has-child-toggled” signal">row-has-child-toggled</a></td>
<td class="signal_flags">Run Last</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GtkTreeModel.html#GtkTreeModel-row-inserted" title="The “row-inserted” signal">row-inserted</a></td>
<td class="signal_flags">Run First</td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="GtkTreeModel.html#GtkTreeModel-rows-reordered" title="The “rows-reordered” signal">rows-reordered</a></td>
<td class="signal_flags">Run First</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GtkTreeIter"></a><a name="GtkTreePath"></a><div class="refsect1">
<a name="GtkTreeModel.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="other_proto_type">
<col class="other_proto_name">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GtkTreeModel.html#GtkTreeModel-struct" title="GtkTreeModel">GtkTreeModel</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter">GtkTreeIter</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath">GtkTreePath</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference">GtkTreeRowReference</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GtkTreeModel.html#GtkTreeModelIface" title="struct GtkTreeModelIface">GtkTreeModelIface</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GtkTreeModel.html#GtkTreeModelFlags" title="enum GtkTreeModelFlags">GtkTreeModelFlags</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GtkTreeModel.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-Boxed-Types.html">GBoxed</a>
    <span class="lineart">├──</span> GtkTreeIter
    <span class="lineart">╰──</span> GtkTreePath
    <a href="/usr/share/gtk-doc/html/gobject/GTypeModule.html">GInterface</a>
    <span class="lineart">╰──</span> GtkTreeModel
</pre>
</div>
<div class="refsect1">
<a name="GtkTreeModel.prerequisites"></a><h2>Prerequisites</h2>
<p>
GtkTreeModel requires
 GObject.</p>
</div>
<div class="refsect1">
<a name="GtkTreeModel.derived-interfaces"></a><h2>Known Derived Interfaces</h2>
<p>
GtkTreeModel is required by
 <a class="link" href="GtkTreeSortable.html" title="GtkTreeSortable">GtkTreeSortable</a>.</p>
</div>
<div class="refsect1">
<a name="GtkTreeModel.implementations"></a><h2>Known Implementations</h2>
<p>
GtkTreeModel is implemented by
 <a class="link" href="GtkListStore.html" title="GtkListStore">GtkListStore</a>,  <a class="link" href="GtkTreeModelFilter.html" title="GtkTreeModelFilter">GtkTreeModelFilter</a>,  <a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort">GtkTreeModelSort</a> and  <a class="link" href="GtkTreeStore.html" title="GtkTreeStore">GtkTreeStore</a>.</p>
</div>
<div class="refsect1">
<a name="GtkTreeModel.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gtk/gtk.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="GtkTreeModel.description"></a><h2>Description</h2>
<p>The <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> interface defines a generic tree interface for
use by the <a class="link" href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a> widget. It is an abstract interface, and
is designed to be usable with any appropriate data structure. The
programmer just has to implement this interface on their own data
type for it to be viewable by a <a class="link" href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a> widget.</p>
<p>The model is represented as a hierarchical tree of strongly-typed,
columned data. In other words, the model can be seen as a tree where
every node has different values depending on which column is being
queried. The type of data found in a column is determined by using
the GType system (ie. <span class="type">G_TYPE_INT</span>, <span class="type">GTK_TYPE_BUTTON</span>, <span class="type">G_TYPE_POINTER</span>,
etc). The types are homogeneous per column across all nodes. It is
important to note that this interface only provides a way of examining
a model and observing changes. The implementation of each individual
model decides how and if changes are made.</p>
<p>In order to make life simpler for programmers who do not need to
write their own specialized model, two generic models are provided
— the <a class="link" href="GtkTreeStore.html" title="GtkTreeStore"><span class="type">GtkTreeStore</span></a> and the <a class="link" href="GtkListStore.html" title="GtkListStore"><span class="type">GtkListStore</span></a>. To use these, the
developer simply pushes data into these models as necessary. These
models provide the data structure as well as all appropriate tree
interfaces. As a result, implementing drag and drop, sorting, and
storing data is trivial. For the vast majority of trees and lists,
these two models are sufficient.</p>
<p>Models are accessed on a node/column level of granularity. One can
query for the value of a model at a certain node and a certain
column on that node. There are two structures used to reference a
particular node in a model. They are the <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> and
the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> (“iter” is short for iterator). Most of the
interface consists of operations on a <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>.</p>
<p>A path is essentially a potential node. It is a location on a model
that may or may not actually correspond to a node on a specific
model. The <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> can be converted into either an
array of unsigned integers or a string. The string form is a list
of numbers separated by a colon. Each number refers to the offset
at that level. Thus, the path <code class="literal">0</code> refers to the root
node and the path <code class="literal">2:4</code> refers to the fifth child of
the third node.</p>
<p>By contrast, a <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> is a reference to a specific node on
a specific model. It is a generic struct with an integer and three
generic pointers. These are filled in by the model in a model-specific
way. One can convert a path to an iterator by calling
<a class="link" href="GtkTreeModel.html#gtk-tree-model-get-iter" title="gtk_tree_model_get_iter ()"><code class="function">gtk_tree_model_get_iter()</code></a>. These iterators are the primary way
of accessing a model and are similar to the iterators used by
<a class="link" href="GtkTextBuffer.html" title="GtkTextBuffer"><span class="type">GtkTextBuffer</span></a>. They are generally statically allocated on the
stack and only used for a short time. The model interface defines
a set of operations using them for navigating the model.</p>
<p>It is expected that models fill in the iterator with private data.
For example, the <a class="link" href="GtkListStore.html" title="GtkListStore"><span class="type">GtkListStore</span></a> model, which is internally a simple
linked list, stores a list node in one of the pointers. The
<a class="link" href="GtkTreeModelSort.html" title="GtkTreeModelSort"><span class="type">GtkTreeModelSort</span></a> stores an array and an offset in two of the
pointers. Additionally, there is an integer field. This field is
generally filled with a unique stamp per model. This stamp is for
catching errors resulting from using invalid iterators with a model.</p>
<p>The lifecycle of an iterator can be a little confusing at first.
Iterators are expected to always be valid for as long as the model
is unchanged (and doesn’t emit a signal). The model is considered
to own all outstanding iterators and nothing needs to be done to
free them from the user’s point of view. Additionally, some models
guarantee that an iterator is valid for as long as the node it refers
to is valid (most notably the <a class="link" href="GtkTreeStore.html" title="GtkTreeStore"><span class="type">GtkTreeStore</span></a> and <a class="link" href="GtkListStore.html" title="GtkListStore"><span class="type">GtkListStore</span></a>).
Although generally uninteresting, as one always has to allow for
the case where iterators do not persist beyond a signal, some very
important performance enhancements were made in the sort model.
As a result, the <a class="link" href="GtkTreeModel.html#GTK-TREE-MODEL-ITERS-PERSIST:CAPS"><span class="type">GTK_TREE_MODEL_ITERS_PERSIST</span></a> flag was added to
indicate this behavior.</p>
<p>To help show some common operation of a model, some examples are
provided. The first example shows three ways of getting the iter at
the location <code class="literal">3:2:5</code>. While the first method shown is
easier, the second is much more common, as you often get paths from
callbacks.</p>
<div class="refsect3">
<a name="id-1.3.12.3.13.11"></a><h4>Acquiring a <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>
</h4>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
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        <td class="listing_code"><pre class="programlisting"><span class="c1">// Three ways of getting the iter pointing to the location</span>
<span class="n">GtkTreePath</span> <span class="o">*</span><span class="n">path</span><span class="p">;</span>
<span class="n">GtkTreeIter</span> <span class="n">iter</span><span class="p">;</span>
<span class="n">GtkTreeIter</span> <span class="n">parent_iter</span><span class="p">;</span>

<span class="c1">// get the iterator from a string</span>
<span class="n">gtk_tree_model_get_iter_from_string</span> <span class="p">(</span><span class="n">model</span><span class="p">,</span>
                                     <span class="o">&amp;</span><span class="n">iter</span><span class="p">,</span>
                                     <span class="s">&quot;3:2:5&quot;</span><span class="p">);</span>

<span class="c1">// get the iterator from a path</span>
<span class="n">path</span> <span class="o">=</span> <span class="n">gtk_tree_path_new_from_string</span> <span class="p">(</span><span class="s">&quot;3:2:5&quot;</span><span class="p">);</span>
<span class="n">gtk_tree_model_get_iter</span> <span class="p">(</span><span class="n">model</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">iter</span><span class="p">,</span> <span class="n">path</span><span class="p">);</span>
<span class="n">gtk_tree_path_free</span> <span class="p">(</span><span class="n">path</span><span class="p">);</span>

<span class="c1">// walk the tree to find the iterator</span>
<span class="n">gtk_tree_model_iter_nth_child</span> <span class="p">(</span><span class="n">model</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">iter</span><span class="p">,</span>
                               <span class="nb">NULL</span><span class="p">,</span> <span class="mi">3</span><span class="p">);</span>
<span class="n">parent_iter</span> <span class="o">=</span> <span class="n">iter</span><span class="p">;</span>
<span class="n">gtk_tree_model_iter_nth_child</span> <span class="p">(</span><span class="n">model</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">iter</span><span class="p">,</span>
                               <span class="o">&amp;</span><span class="n">parent_iter</span><span class="p">,</span> <span class="mi">2</span><span class="p">);</span>
<span class="n">parent_iter</span> <span class="o">=</span> <span class="n">iter</span><span class="p">;</span>
<span class="n">gtk_tree_model_iter_nth_child</span> <span class="p">(</span><span class="n">model</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">iter</span><span class="p">,</span>
                               <span class="o">&amp;</span><span class="n">parent_iter</span><span class="p">,</span> <span class="mi">5</span><span class="p">);</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p></p>
<p>This second example shows a quick way of iterating through a list
and getting a string and an integer from each row. The
<code class="function">populate_model()</code> function used below is not
shown, as it is specific to the <a class="link" href="GtkListStore.html" title="GtkListStore"><span class="type">GtkListStore</span></a>. For information on
how to write such a function, see the <a class="link" href="GtkListStore.html" title="GtkListStore"><span class="type">GtkListStore</span></a> documentation.</p>
</div>
<div class="refsect3">
<a name="id-1.3.12.3.13.12"></a><h4>Reading data from a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>
</h4>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
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47</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="k">enum</span>
<span class="p">{</span>
  <span class="n">STRING_COLUMN</span><span class="p">,</span>
  <span class="n">INT_COLUMN</span><span class="p">,</span>
  <span class="n">N_COLUMNS</span>
<span class="p">};</span>

<span class="p">...</span>

<span class="n">GtkTreeModel</span> <span class="o">*</span><span class="n">list_store</span><span class="p">;</span>
<span class="n">GtkTreeIter</span> <span class="n">iter</span><span class="p">;</span>
<span class="n">gboolean</span> <span class="n">valid</span><span class="p">;</span>
<span class="n">gint</span> <span class="n">row_count</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>

<span class="c1">// make a new list_store</span>
<span class="n">list_store</span> <span class="o">=</span> <span class="n">gtk_list_store_new</span> <span class="p">(</span><span class="n">N_COLUMNS</span><span class="p">,</span>
                                 <span class="n">G_TYPE_STRING</span><span class="p">,</span>
                                 <span class="n">G_TYPE_INT</span><span class="p">);</span>

<span class="c1">// Fill the list store with data</span>
<span class="n">populate_model</span> <span class="p">(</span><span class="n">list_store</span><span class="p">);</span>

<span class="c1">// Get the first iter in the list, check it is valid and walk</span>
<span class="c1">// through the list, reading each row.</span>

<span class="n">valid</span> <span class="o">=</span> <span class="n">gtk_tree_model_get_iter_first</span> <span class="p">(</span><span class="n">list_store</span><span class="p">,</span>
                                       <span class="o">&amp;</span><span class="n">iter</span><span class="p">);</span>
<span class="k">while</span> <span class="p">(</span><span class="n">valid</span><span class="p">)</span>
 <span class="p">{</span>
   <span class="n">gchar</span> <span class="o">*</span><span class="n">str_data</span><span class="p">;</span>
   <span class="n">gint</span>   <span class="n">int_data</span><span class="p">;</span>

   <span class="c1">// Make sure you terminate calls to gtk_tree_model_get() with a “-1” value</span>
   <span class="n">gtk_tree_model_get</span> <span class="p">(</span><span class="n">list_store</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">iter</span><span class="p">,</span>
                       <span class="n">STRING_COLUMN</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">str_data</span><span class="p">,</span>
                       <span class="n">INT_COLUMN</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">int_data</span><span class="p">,</span>
                       <span class="mi">-1</span><span class="p">);</span>

   <span class="c1">// Do something with the data</span>
   <span class="n">g_print</span> <span class="p">(</span><span class="s">&quot;Row %d: (%s,%d)</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">,</span>
            <span class="n">row_count</span><span class="p">,</span> <span class="n">str_data</span><span class="p">,</span> <span class="n">int_data</span><span class="p">);</span>
   <span class="n">g_free</span> <span class="p">(</span><span class="n">str_data</span><span class="p">);</span>

   <span class="n">valid</span> <span class="o">=</span> <span class="n">gtk_tree_model_iter_next</span> <span class="p">(</span><span class="n">list_store</span><span class="p">,</span>
                                     <span class="o">&amp;</span><span class="n">iter</span><span class="p">);</span>
   <span class="n">row_count</span><span class="o">++</span><span class="p">;</span>
 <span class="p">}</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p></p>
<p>The <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> interface contains two methods for reference
counting: <a class="link" href="GtkTreeModel.html#gtk-tree-model-ref-node" title="gtk_tree_model_ref_node ()"><code class="function">gtk_tree_model_ref_node()</code></a> and <a class="link" href="GtkTreeModel.html#gtk-tree-model-unref-node" title="gtk_tree_model_unref_node ()"><code class="function">gtk_tree_model_unref_node()</code></a>.
These two methods are optional to implement. The reference counting
is meant as a way for views to let models know when nodes are being
displayed. <a class="link" href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a> will take a reference on a node when it is
visible, which means the node is either in the toplevel or expanded.
Being displayed does not mean that the node is currently directly
visible to the user in the viewport. Based on this reference counting
scheme a caching model, for example, can decide whether or not to cache
a node based on the reference count. A file-system based model would
not want to keep the entire file hierarchy in memory, but just the
folders that are currently expanded in every current view.</p>
<p>When working with reference counting, the following rules must be taken
into account:</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>Never take a reference on a node without owning a reference on its parent.
This means that all parent nodes of a referenced node must be referenced
as well.</p></li>
<li class="listitem"><p>Outstanding references on a deleted node are not released. This is not
possible because the node has already been deleted by the time the
row-deleted signal is received.</p></li>
<li class="listitem"><p>Models are not obligated to emit a signal on rows of which none of its
siblings are referenced. To phrase this differently, signals are only
required for levels in which nodes are referenced. For the root level
however, signals must be emitted at all times (however the root level
is always referenced when any view is attached).</p></li>
</ul></div>
</div>
</div>
<div class="refsect1">
<a name="GtkTreeModel.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="GtkTreeModelForeachFunc"></a><h3>GtkTreeModelForeachFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
<span class="c_punctuation">(</span>*GtkTreeModelForeachFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *model</code></em>,
                            <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                            <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                            <em class="parameter"><code><span class="type">gpointer</span> data</code></em>);</pre>
<p>Type of the callback passed to <a class="link" href="GtkTreeModel.html#gtk-tree-model-foreach" title="gtk_tree_model_foreach ()"><code class="function">gtk_tree_model_foreach()</code></a> to
iterate over the rows in a tree model.</p>
<div class="refsect3">
<a name="GtkTreeModelForeachFunc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>model</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> being iterated</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>the current <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the current <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>The user data passed to <a class="link" href="GtkTreeModel.html#gtk-tree-model-foreach" title="gtk_tree_model_foreach ()"><code class="function">gtk_tree_model_foreach()</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="GtkTreeModelForeachFunc.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> to stop iterating, <code class="literal">FALSE</code> to continue</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-new"></a><h3>gtk_tree_path_new ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
gtk_tree_path_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a>.
This refers to a row.</p>
<div class="refsect3">
<a name="gtk-tree-path-new.returns"></a><h4>Returns</h4>
<p> A newly created <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a>.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-new-from-string"></a><h3>gtk_tree_path_new_from_string ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
gtk_tree_path_new_from_string (<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>);</pre>
<p>Creates a new <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> initialized to <em class="parameter"><code>path</code></em>
.</p>
<p><em class="parameter"><code>path</code></em>
 is expected to be a colon separated list of numbers.
For example, the string “10:4:0” would create a path of depth
3 pointing to the 11th child of the root node, the 5th
child of that 11th child, and the 1st child of that 5th child.
If an invalid path string is passed in, <code class="literal">NULL</code> is returned.</p>
<div class="refsect3">
<a name="gtk-tree-path-new-from-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>The string representation of a path</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-new-from-string.returns"></a><h4>Returns</h4>
<p> A newly-created <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a>, or <code class="literal">NULL</code></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-new-from-indices"></a><h3>gtk_tree_path_new_from_indices ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
gtk_tree_path_new_from_indices (<em class="parameter"><code><span class="type">gint</span> first_index</code></em>,
                                <em class="parameter"><code>...</code></em>);</pre>
<p>Creates a new path with <em class="parameter"><code>first_index</code></em>
 and <em class="parameter"><code>varargs</code></em>
 as indices.</p>
<div class="refsect3">
<a name="gtk-tree-path-new-from-indices.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>first_index</p></td>
<td class="parameter_description"><p>first integer</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>...</p></td>
<td class="parameter_description"><p>list of integers terminated by -1</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-new-from-indices.returns"></a><h4>Returns</h4>
<p> A newly created <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p>
</div>
<p class="since">Since: 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-new-from-indicesv"></a><h3>gtk_tree_path_new_from_indicesv ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
gtk_tree_path_new_from_indicesv (<em class="parameter"><code><span class="type">gint</span> *indices</code></em>,
                                 <em class="parameter"><code><span class="type">gsize</span> length</code></em>);</pre>
<p>Creates a new path with the given <em class="parameter"><code>indices</code></em>
 array of <em class="parameter"><code>length</code></em>
.</p>
<p><span class="annotation">[<acronym title="Rename the original symbol's name to SYMBOL."><span class="acronym">rename-to</span></acronym> gtk_tree_path_new_from_indices]</span></p>
<div class="refsect3">
<a name="gtk-tree-path-new-from-indicesv.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>indices</p></td>
<td class="parameter_description"><p>array of indices. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=length]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>length of <em class="parameter"><code>indices</code></em>
array</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-new-from-indicesv.returns"></a><h4>Returns</h4>
<p> A newly created <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-12.html#api-index-3.12">3.12</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-to-string"></a><h3>gtk_tree_path_to_string ()</h3>
<pre class="programlisting"><span class="returnvalue">gchar</span> *
gtk_tree_path_to_string (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Generates a string representation of the path.</p>
<p>This string is a “:” separated list of numbers.
For example, “4:10:0:3” would be an acceptable
return value for this string.</p>
<div class="refsect3">
<a name="gtk-tree-path-to-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>A <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-to-string.returns"></a><h4>Returns</h4>
<p> A newly-allocated string.
Must be freed with <code class="function">g_free()</code>.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-new-first"></a><h3>gtk_tree_path_new_first ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
gtk_tree_path_new_first (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a>.</p>
<p>The string representation of this path is “0”.</p>
<div class="refsect3">
<a name="gtk-tree-path-new-first.returns"></a><h4>Returns</h4>
<p> A new <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-append-index"></a><h3>gtk_tree_path_append_index ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_path_append_index (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                            <em class="parameter"><code><span class="type">gint</span> index_</code></em>);</pre>
<p>Appends a new index to a path.</p>
<p>As a result, the depth of the path is increased.</p>
<div class="refsect3">
<a name="gtk-tree-path-append-index.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>index_</p></td>
<td class="parameter_description"><p>the index</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-prepend-index"></a><h3>gtk_tree_path_prepend_index ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_path_prepend_index (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                             <em class="parameter"><code><span class="type">gint</span> index_</code></em>);</pre>
<p>Prepends a new index to a path.</p>
<p>As a result, the depth of the path is increased.</p>
<div class="refsect3">
<a name="gtk-tree-path-prepend-index.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>index_</p></td>
<td class="parameter_description"><p>the index</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-get-depth"></a><h3>gtk_tree_path_get_depth ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gtk_tree_path_get_depth (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Returns the current depth of <em class="parameter"><code>path</code></em>
.</p>
<div class="refsect3">
<a name="gtk-tree-path-get-depth.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-get-depth.returns"></a><h4>Returns</h4>
<p> The depth of <em class="parameter"><code>path</code></em>
</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-get-indices"></a><h3>gtk_tree_path_get_indices ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span> *
gtk_tree_path_get_indices (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Returns the current indices of <em class="parameter"><code>path</code></em>
.</p>
<p>This is an array of integers, each representing a node in a tree.
This value should not be freed.</p>
<p>The length of the array can be obtained with <a class="link" href="GtkTreeModel.html#gtk-tree-path-get-depth" title="gtk_tree_path_get_depth ()"><code class="function">gtk_tree_path_get_depth()</code></a>.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gtk-tree-path-get-indices.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-get-indices.returns"></a><h4>Returns</h4>
<p> The current indices, or <code class="literal">NULL</code></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-get-indices-with-depth"></a><h3>gtk_tree_path_get_indices_with_depth ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span> *
gtk_tree_path_get_indices_with_depth (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                                      <em class="parameter"><code><span class="type">gint</span> *depth</code></em>);</pre>
<p>Returns the current indices of <em class="parameter"><code>path</code></em>
.</p>
<p>This is an array of integers, each representing a node in a tree.
It also returns the number of elements in the array.
The array should not be freed.</p>
<p><span class="annotation">[<acronym title="Rename the original symbol's name to SYMBOL."><span class="acronym">rename-to</span></acronym> gtk_tree_path_get_indices]</span></p>
<div class="refsect3">
<a name="gtk-tree-path-get-indices-with-depth.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>depth</p></td>
<td class="parameter_description"><p>return location for number of elements
returned in the integer array, or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-get-indices-with-depth.returns"></a><h4>Returns</h4>
<p>The current
indices, or <code class="literal">NULL</code>. </p>
<p><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=depth][<acronym title="The data is owned by the callee, which is responsible of freeing it."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-free"></a><h3>gtk_tree_path_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_path_free (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Frees <em class="parameter"><code>path</code></em>
. If <em class="parameter"><code>path</code></em>
 is <code class="literal">NULL</code>, it simply returns.</p>
<div class="refsect3">
<a name="gtk-tree-path-free.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-copy"></a><h3>gtk_tree_path_copy ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
gtk_tree_path_copy (<em class="parameter"><code>const <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Creates a new <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> as a copy of <em class="parameter"><code>path</code></em>
.</p>
<div class="refsect3">
<a name="gtk-tree-path-copy.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-copy.returns"></a><h4>Returns</h4>
<p> a new <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-compare"></a><h3>gtk_tree_path_compare ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gtk_tree_path_compare (<em class="parameter"><code>const <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *a</code></em>,
                       <em class="parameter"><code>const <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *b</code></em>);</pre>
<p>Compares two paths.</p>
<p>If <em class="parameter"><code>a</code></em>
 appears before <em class="parameter"><code>b</code></em>
 in a tree, then -1 is returned.
If <em class="parameter"><code>b</code></em>
 appears before <em class="parameter"><code>a</code></em>
, then 1 is returned.
If the two nodes are equal, then 0 is returned.</p>
<div class="refsect3">
<a name="gtk-tree-path-compare.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>a</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>b</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> to compare with</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-compare.returns"></a><h4>Returns</h4>
<p> the relative positions of <em class="parameter"><code>a</code></em>
and <em class="parameter"><code>b</code></em>
</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-next"></a><h3>gtk_tree_path_next ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_path_next (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Moves the <em class="parameter"><code>path</code></em>
 to point to the next node at the current depth.</p>
<div class="refsect3">
<a name="gtk-tree-path-next.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-prev"></a><h3>gtk_tree_path_prev ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_path_prev (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Moves the <em class="parameter"><code>path</code></em>
 to point to the previous node at the
current depth, if it exists.</p>
<div class="refsect3">
<a name="gtk-tree-path-prev.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-prev.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>path</code></em>
has a previous node, and
the move was made</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-up"></a><h3>gtk_tree_path_up ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_path_up (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Moves the <em class="parameter"><code>path</code></em>
 to point to its parent node, if it has a parent.</p>
<div class="refsect3">
<a name="gtk-tree-path-up.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-up.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>path</code></em>
has a parent, and the move was made</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-down"></a><h3>gtk_tree_path_down ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_path_down (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Moves <em class="parameter"><code>path</code></em>
 to point to the first child of the current path.</p>
<div class="refsect3">
<a name="gtk-tree-path-down.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-is-ancestor"></a><h3>gtk_tree_path_is_ancestor ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_path_is_ancestor (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                           <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *descendant</code></em>);</pre>
<p>Returns <code class="literal">TRUE</code> if <em class="parameter"><code>descendant</code></em>
 is a descendant of <em class="parameter"><code>path</code></em>
.</p>
<div class="refsect3">
<a name="gtk-tree-path-is-ancestor.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>descendant</p></td>
<td class="parameter_description"><p>another <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-is-ancestor.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>descendant</code></em>
is contained inside <em class="parameter"><code>path</code></em>
</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-path-is-descendant"></a><h3>gtk_tree_path_is_descendant ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_path_is_descendant (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                             <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *ancestor</code></em>);</pre>
<p>Returns <code class="literal">TRUE</code> if <em class="parameter"><code>path</code></em>
 is a descendant of <em class="parameter"><code>ancestor</code></em>
.</p>
<div class="refsect3">
<a name="gtk-tree-path-is-descendant.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>ancestor</p></td>
<td class="parameter_description"><p>another <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-path-is-descendant.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>ancestor</code></em>
contains <em class="parameter"><code>path</code></em>
somewhere below it</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-new"></a><h3>gtk_tree_row_reference_new ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="returnvalue">GtkTreeRowReference</span></a> *
gtk_tree_row_reference_new (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *model</code></em>,
                            <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Creates a row reference based on <em class="parameter"><code>path</code></em>
.</p>
<p>This reference will keep pointing to the node pointed to
by <em class="parameter"><code>path</code></em>
, so long as it exists. Any changes that occur on <em class="parameter"><code>model</code></em>
 are
propagated, and the path is updated appropriately. If
<em class="parameter"><code>path</code></em>
 isn’t a valid path in <em class="parameter"><code>model</code></em>
, then <code class="literal">NULL</code> is returned.</p>
<div class="refsect3">
<a name="gtk-tree-row-reference-new.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> to monitor</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-row-reference-new.returns"></a><h4>Returns</h4>
<p> a newly allocated <a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a>, or <code class="literal">NULL</code></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-new-proxy"></a><h3>gtk_tree_row_reference_new_proxy ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="returnvalue">GtkTreeRowReference</span></a> *
gtk_tree_row_reference_new_proxy (<em class="parameter"><code><span class="type">GObject</span> *proxy</code></em>,
                                  <em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *model</code></em>,
                                  <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>You do not need to use this function.</p>
<p>Creates a row reference based on <em class="parameter"><code>path</code></em>
.</p>
<p>This reference will keep pointing to the node pointed to
by <em class="parameter"><code>path</code></em>
, so long as it exists. If <em class="parameter"><code>path</code></em>
 isn’t a valid
path in <em class="parameter"><code>model</code></em>
, then <code class="literal">NULL</code> is returned. However, unlike
references created with <a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-new" title="gtk_tree_row_reference_new ()"><code class="function">gtk_tree_row_reference_new()</code></a>, it
does not listen to the model for changes. The creator of
the row reference must do this explicitly using
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-inserted" title="gtk_tree_row_reference_inserted ()"><code class="function">gtk_tree_row_reference_inserted()</code></a>, <a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-deleted" title="gtk_tree_row_reference_deleted ()"><code class="function">gtk_tree_row_reference_deleted()</code></a>,
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-reordered" title="gtk_tree_row_reference_reordered ()"><code class="function">gtk_tree_row_reference_reordered()</code></a>.</p>
<p>These functions must be called exactly once per proxy when the
corresponding signal on the model is emitted. This single call
updates all row references for that proxy. Since built-in GTK+
objects like <a class="link" href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a> already use this mechanism internally,
using them as the proxy object will produce unpredictable results.
Further more, passing the same object as <em class="parameter"><code>model</code></em>
 and <em class="parameter"><code>proxy</code></em>

doesn’t work for reasons of internal implementation.</p>
<p>This type of row reference is primarily meant by structures that
need to carefully monitor exactly when a row reference updates
itself, and is not generally needed by most applications.</p>
<div class="refsect3">
<a name="gtk-tree-row-reference-new-proxy.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>proxy</p></td>
<td class="parameter_description"><p>a proxy <span class="type">GObject</span></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> to monitor</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-row-reference-new-proxy.returns"></a><h4>Returns</h4>
<p> a newly allocated <a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a>, or <code class="literal">NULL</code></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-get-model"></a><h3>gtk_tree_row_reference_get_model ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="returnvalue">GtkTreeModel</span></a> *
gtk_tree_row_reference_get_model (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a> *reference</code></em>);</pre>
<p>Returns the model that the row reference is monitoring.</p>
<div class="refsect3">
<a name="gtk-tree-row-reference-get-model.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>reference</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-row-reference-get-model.returns"></a><h4>Returns</h4>
<p>the model. </p>
<p><span class="annotation">[<acronym title="The data is owned by the callee, which is responsible of freeing it."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: 2.8</p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-get-path"></a><h3>gtk_tree_row_reference_get_path ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
gtk_tree_row_reference_get_path (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a> *reference</code></em>);</pre>
<p>Returns a path that the row reference currently points to,
or <code class="literal">NULL</code> if the path pointed to is no longer valid.</p>
<div class="refsect3">
<a name="gtk-tree-row-reference-get-path.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>reference</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-row-reference-get-path.returns"></a><h4>Returns</h4>
<p>a current path, or <code class="literal">NULL</code>. </p>
<p><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>][<acronym title="The caller owns the data, and is responsible for free it."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-valid"></a><h3>gtk_tree_row_reference_valid ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_row_reference_valid (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a> *reference</code></em>);</pre>
<p>Returns <code class="literal">TRUE</code> if the <em class="parameter"><code>reference</code></em>
 is non-<code class="literal">NULL</code> and refers to
a current valid path.</p>
<div class="refsect3">
<a name="gtk-tree-row-reference-valid.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>reference</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a>, or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-row-reference-valid.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>reference</code></em>
points to a valid path</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-free"></a><h3>gtk_tree_row_reference_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_row_reference_free (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a> *reference</code></em>);</pre>
<p>Free’s <em class="parameter"><code>reference</code></em>
. <em class="parameter"><code>reference</code></em>
 may be <code class="literal">NULL</code></p>
<div class="refsect3">
<a name="gtk-tree-row-reference-free.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>reference</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a>, or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-copy"></a><h3>gtk_tree_row_reference_copy ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="returnvalue">GtkTreeRowReference</span></a> *
gtk_tree_row_reference_copy (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a> *reference</code></em>);</pre>
<p>Copies a <a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a>.</p>
<div class="refsect3">
<a name="gtk-tree-row-reference-copy.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>reference</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreeRowReference" title="GtkTreeRowReference"><span class="type">GtkTreeRowReference</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-row-reference-copy.returns"></a><h4>Returns</h4>
<p> a copy of <em class="parameter"><code>reference</code></em>
</p>
</div>
<p class="since">Since: 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-inserted"></a><h3>gtk_tree_row_reference_inserted ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_row_reference_inserted (<em class="parameter"><code><span class="type">GObject</span> *proxy</code></em>,
                                 <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Lets a set of row reference created by
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-new-proxy" title="gtk_tree_row_reference_new_proxy ()"><code class="function">gtk_tree_row_reference_new_proxy()</code></a> know that the
model emitted the <a class="link" href="GtkTreeModel.html#GtkTreeModel-row-inserted" title="The “row-inserted” signal"><span class="type">“row-inserted”</span></a> signal.</p>
<div class="refsect3">
<a name="gtk-tree-row-reference-inserted.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>proxy</p></td>
<td class="parameter_description"><p>a <span class="type">GObject</span></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>the row position that was inserted</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-deleted"></a><h3>gtk_tree_row_reference_deleted ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_row_reference_deleted (<em class="parameter"><code><span class="type">GObject</span> *proxy</code></em>,
                                <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Lets a set of row reference created by
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-new-proxy" title="gtk_tree_row_reference_new_proxy ()"><code class="function">gtk_tree_row_reference_new_proxy()</code></a> know that the
model emitted the <a class="link" href="GtkTreeModel.html#GtkTreeModel-row-deleted" title="The “row-deleted” signal"><span class="type">“row-deleted”</span></a> signal.</p>
<div class="refsect3">
<a name="gtk-tree-row-reference-deleted.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>proxy</p></td>
<td class="parameter_description"><p>a <span class="type">GObject</span></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>the path position that was deleted</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-row-reference-reordered"></a><h3>gtk_tree_row_reference_reordered ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_row_reference_reordered (<em class="parameter"><code><span class="type">GObject</span> *proxy</code></em>,
                                  <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                                  <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                                  <em class="parameter"><code><span class="type">gint</span> *new_order</code></em>);</pre>
<p>Lets a set of row reference created by
<a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-new-proxy" title="gtk_tree_row_reference_new_proxy ()"><code class="function">gtk_tree_row_reference_new_proxy()</code></a> know that the
model emitted the <a class="link" href="GtkTreeModel.html#GtkTreeModel-rows-reordered" title="The “rows-reordered” signal"><span class="type">“rows-reordered”</span></a> signal.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gtk-tree-row-reference-reordered.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>proxy</p></td>
<td class="parameter_description"><p>a <span class="type">GObject</span></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>the parent path of the reordered signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the iter pointing to the parent of the reordered</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>new_order</p></td>
<td class="parameter_description"><p>the new order of rows. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-iter-copy"></a><h3>gtk_tree_iter_copy ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="returnvalue">GtkTreeIter</span></a> *
gtk_tree_iter_copy (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Creates a dynamically allocated tree iterator as a copy of <em class="parameter"><code>iter</code></em>
.</p>
<p>This function is not intended for use in applications,
because you can just copy the structs by value
(<code class="literal">GtkTreeIter new_iter = iter;</code>).
You must free this iter with <a class="link" href="GtkTreeModel.html#gtk-tree-iter-free" title="gtk_tree_iter_free ()"><code class="function">gtk_tree_iter_free()</code></a>.</p>
<div class="refsect3">
<a name="gtk-tree-iter-copy.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-iter-copy.returns"></a><h4>Returns</h4>
<p> a newly-allocated copy of <em class="parameter"><code>iter</code></em>
</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-iter-free"></a><h3>gtk_tree_iter_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_iter_free (<em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Frees an iterator that has been allocated by <a class="link" href="GtkTreeModel.html#gtk-tree-iter-copy" title="gtk_tree_iter_copy ()"><code class="function">gtk_tree_iter_copy()</code></a>.</p>
<p>This function is mainly used for language bindings.</p>
<div class="refsect3">
<a name="gtk-tree-iter-free.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a dynamically allocated tree iterator</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-flags"></a><h3>gtk_tree_model_get_flags ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreeModelFlags" title="enum GtkTreeModelFlags"><span class="returnvalue">GtkTreeModelFlags</span></a>
gtk_tree_model_get_flags (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>);</pre>
<p>Returns a set of flags supported by this interface.</p>
<p>The flags are a bitwise combination of <a class="link" href="GtkTreeModel.html#GtkTreeModelFlags" title="enum GtkTreeModelFlags"><span class="type">GtkTreeModelFlags</span></a>.
The flags supported should not change during the lifetime
of the <em class="parameter"><code>tree_model</code></em>
.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-flags.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-get-flags.returns"></a><h4>Returns</h4>
<p> the flags supported by this interface</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-n-columns"></a><h3>gtk_tree_model_get_n_columns ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gtk_tree_model_get_n_columns (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>);</pre>
<p>Returns the number of columns supported by <em class="parameter"><code>tree_model</code></em>
.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-n-columns.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-get-n-columns.returns"></a><h4>Returns</h4>
<p> the number of columns</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-column-type"></a><h3>gtk_tree_model_get_column_type ()</h3>
<pre class="programlisting"><span class="returnvalue">GType</span>
gtk_tree_model_get_column_type (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                                <em class="parameter"><code><span class="type">gint</span> index_</code></em>);</pre>
<p>Returns the type of the column.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-column-type.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>index_</p></td>
<td class="parameter_description"><p>the column index</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-get-column-type.returns"></a><h4>Returns</h4>
<p> the type of the column</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-iter"></a><h3>gtk_tree_model_get_iter ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_get_iter (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                         <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                         <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Sets <em class="parameter"><code>iter</code></em>
 to a valid iterator pointing to <em class="parameter"><code>path</code></em>
.  If <em class="parameter"><code>path</code></em>
 does
not exist, <em class="parameter"><code>iter</code></em>
 is set to an invalid iterator and <code class="literal">FALSE</code> is returned.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-iter.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the uninitialized <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-get-iter.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code>, if <em class="parameter"><code>iter</code></em>
was set</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-iter-from-string"></a><h3>gtk_tree_model_get_iter_from_string ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_get_iter_from_string (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                                     <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                                     <em class="parameter"><code>const <span class="type">gchar</span> *path_string</code></em>);</pre>
<p>Sets <em class="parameter"><code>iter</code></em>
 to a valid iterator pointing to <em class="parameter"><code>path_string</code></em>
, if it
exists. Otherwise, <em class="parameter"><code>iter</code></em>
 is left invalid and <code class="literal">FALSE</code> is returned.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-iter-from-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>an uninitialized <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>path_string</p></td>
<td class="parameter_description"><p>a string representation of a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-get-iter-from-string.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code>, if <em class="parameter"><code>iter</code></em>
was set</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-iter-first"></a><h3>gtk_tree_model_get_iter_first ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_get_iter_first (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                               <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Initializes <em class="parameter"><code>iter</code></em>
 with the first iterator in the tree
(the one at the path "0") and returns <code class="literal">TRUE</code>. Returns
<code class="literal">FALSE</code> if the tree is empty.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-iter-first.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the uninitialized <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-get-iter-first.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code>, if <em class="parameter"><code>iter</code></em>
was set</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-path"></a><h3>gtk_tree_model_get_path ()</h3>
<pre class="programlisting"><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="returnvalue">GtkTreePath</span></a> *
gtk_tree_model_get_path (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                         <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Returns a newly-created <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> referenced by <em class="parameter"><code>iter</code></em>
.</p>
<p>This path should be freed with <a class="link" href="GtkTreeModel.html#gtk-tree-path-free" title="gtk_tree_path_free ()"><code class="function">gtk_tree_path_free()</code></a>.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-path.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-get-path.returns"></a><h4>Returns</h4>
<p> a newly-created <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-value"></a><h3>gtk_tree_model_get_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_get_value (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                          <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                          <em class="parameter"><code><span class="type">gint</span> column</code></em>,
                          <em class="parameter"><code><span class="type">GValue</span> *value</code></em>);</pre>
<p>Initializes and sets <em class="parameter"><code>value</code></em>
 to that at <em class="parameter"><code>column</code></em>
.</p>
<p>When done with <em class="parameter"><code>value</code></em>
, <code class="function">g_value_unset()</code> needs to be called
to free any allocated memory.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>column</p></td>
<td class="parameter_description"><p>the column to lookup the value at</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>an empty <span class="type">GValue</span> to set. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="The data is owned by the callee, which is responsible of freeing it."><span class="acronym">transfer none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-iter-next"></a><h3>gtk_tree_model_iter_next ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_iter_next (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                          <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Sets <em class="parameter"><code>iter</code></em>
 to point to the node following it at the current level.</p>
<p>If there is no next <em class="parameter"><code>iter</code></em>
, <code class="literal">FALSE</code> is returned and <em class="parameter"><code>iter</code></em>
 is set
to be invalid.</p>
<div class="refsect3">
<a name="gtk-tree-model-iter-next.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input. Default is transfer none."><span class="acronym">in</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-iter-next.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>iter</code></em>
has been changed to the next node</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-iter-previous"></a><h3>gtk_tree_model_iter_previous ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_iter_previous (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                              <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Sets <em class="parameter"><code>iter</code></em>
 to point to the previous node at the current level.</p>
<p>If there is no previous <em class="parameter"><code>iter</code></em>
, <code class="literal">FALSE</code> is returned and <em class="parameter"><code>iter</code></em>
 is
set to be invalid.</p>
<div class="refsect3">
<a name="gtk-tree-model-iter-previous.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input. Default is transfer none."><span class="acronym">in</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-iter-previous.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>iter</code></em>
has been changed to the previous node</p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-iter-children"></a><h3>gtk_tree_model_iter_children ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_iter_children (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                              <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                              <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *parent</code></em>);</pre>
<p>Sets <em class="parameter"><code>iter</code></em>
 to point to the first child of <em class="parameter"><code>parent</code></em>
.</p>
<p>If <em class="parameter"><code>parent</code></em>
 has no children, <code class="literal">FALSE</code> is returned and <em class="parameter"><code>iter</code></em>
 is
set to be invalid. <em class="parameter"><code>parent</code></em>
 will remain a valid node after this
function has been called.</p>
<p>If <em class="parameter"><code>parent</code></em>
 is <code class="literal">NULL</code> returns the first node, equivalent to
<code class="literal">gtk_tree_model_get_iter_first (tree_model, iter);</code></p>
<div class="refsect3">
<a name="gtk-tree-model-iter-children.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the new <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> to be set to the child. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>parent</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>, or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-iter-children.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code>, if <em class="parameter"><code>iter</code></em>
has been set to the first child</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-iter-has-child"></a><h3>gtk_tree_model_iter_has_child ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_iter_has_child (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                               <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Returns <code class="literal">TRUE</code> if <em class="parameter"><code>iter</code></em>
 has children, <code class="literal">FALSE</code> otherwise.</p>
<div class="refsect3">
<a name="gtk-tree-model-iter-has-child.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> to test for children</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-iter-has-child.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code> if <em class="parameter"><code>iter</code></em>
has children</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-iter-n-children"></a><h3>gtk_tree_model_iter_n_children ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span>
gtk_tree_model_iter_n_children (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                                <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Returns the number of children that <em class="parameter"><code>iter</code></em>
 has.</p>
<p>As a special case, if <em class="parameter"><code>iter</code></em>
 is <code class="literal">NULL</code>, then the number
of toplevel nodes is returned.</p>
<div class="refsect3">
<a name="gtk-tree-model-iter-n-children.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a>, or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-iter-n-children.returns"></a><h4>Returns</h4>
<p> the number of children of <em class="parameter"><code>iter</code></em>
</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-iter-nth-child"></a><h3>gtk_tree_model_iter_nth_child ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_iter_nth_child (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                               <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                               <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *parent</code></em>,
                               <em class="parameter"><code><span class="type">gint</span> n</code></em>);</pre>
<p>Sets <em class="parameter"><code>iter</code></em>
 to be the child of <em class="parameter"><code>parent</code></em>
, using the given index.</p>
<p>The first index is 0. If <em class="parameter"><code>n</code></em>
 is too big, or <em class="parameter"><code>parent</code></em>
 has no children,
<em class="parameter"><code>iter</code></em>
 is set to an invalid iterator and <code class="literal">FALSE</code> is returned. <em class="parameter"><code>parent</code></em>

will remain a valid node after this function has been called. As a
special case, if <em class="parameter"><code>parent</code></em>
 is <code class="literal">NULL</code>, then the <em class="parameter"><code>n</code></em>
-th root node
is set.</p>
<div class="refsect3">
<a name="gtk-tree-model-iter-nth-child.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> to set to the nth child. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>parent</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> to get the child from, or <code class="literal">NULL</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>n</p></td>
<td class="parameter_description"><p>the index of the desired child</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-iter-nth-child.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code>, if <em class="parameter"><code>parent</code></em>
has an <em class="parameter"><code>n</code></em>
-th child</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-iter-parent"></a><h3>gtk_tree_model_iter_parent ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>
gtk_tree_model_iter_parent (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                            <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                            <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *child</code></em>);</pre>
<p>Sets <em class="parameter"><code>iter</code></em>
 to be the parent of <em class="parameter"><code>child</code></em>
.</p>
<p>If <em class="parameter"><code>child</code></em>
 is at the toplevel, and doesn’t have a parent, then
<em class="parameter"><code>iter</code></em>
 is set to an invalid iterator and <code class="literal">FALSE</code> is returned.
<em class="parameter"><code>child</code></em>
 will remain a valid node after this function has been
called.</p>
<p><em class="parameter"><code>iter</code></em>
 will be initialized before the lookup is performed, so <em class="parameter"><code>child</code></em>

and <em class="parameter"><code>iter</code></em>
 cannot point to the same memory location.</p>
<div class="refsect3">
<a name="gtk-tree-model-iter-parent.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the new <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> to set to the parent. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>child</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-iter-parent.returns"></a><h4>Returns</h4>
<p> <code class="literal">TRUE</code>, if <em class="parameter"><code>iter</code></em>
is set to the parent of <em class="parameter"><code>child</code></em>
</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-string-from-iter"></a><h3>gtk_tree_model_get_string_from_iter ()</h3>
<pre class="programlisting"><span class="returnvalue">gchar</span> *
gtk_tree_model_get_string_from_iter (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                                     <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Generates a string representation of the iter.</p>
<p>This string is a “:” separated list of numbers.
For example, “4:10:0:3” would be an acceptable
return value for this string.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-string-from-iter.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gtk-tree-model-get-string-from-iter.returns"></a><h4>Returns</h4>
<p> a newly-allocated string.
Must be freed with <code class="function">g_free()</code>.</p>
</div>
<p class="since">Since: 2.2</p>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-ref-node"></a><h3>gtk_tree_model_ref_node ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_ref_node (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                         <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Lets the tree ref the node.</p>
<p>This is an optional method for models to implement.
To be more specific, models may ignore this call as it exists
primarily for performance reasons.</p>
<p>This function is primarily meant as a way for views to let
caching models know when nodes are being displayed (and hence,
whether or not to cache that node). Being displayed means a node
is in an expanded branch, regardless of whether the node is currently
visible in the viewport. For example, a file-system based model
would not want to keep the entire file-hierarchy in memory,
just the sections that are currently being displayed by
every current view.</p>
<p>A model should be expected to be able to get an iter independent
of its reffed state.</p>
<div class="refsect3">
<a name="gtk-tree-model-ref-node.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-unref-node"></a><h3>gtk_tree_model_unref_node ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_unref_node (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                           <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Lets the tree unref the node.</p>
<p>This is an optional method for models to implement.
To be more specific, models may ignore this call as it exists
primarily for performance reasons. For more information on what
this means, see <a class="link" href="GtkTreeModel.html#gtk-tree-model-ref-node" title="gtk_tree_model_ref_node ()"><code class="function">gtk_tree_model_ref_node()</code></a>.</p>
<p>Please note that nodes that are deleted are not unreffed.</p>
<div class="refsect3">
<a name="gtk-tree-model-unref-node.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get"></a><h3>gtk_tree_model_get ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_get (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                    <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                    <em class="parameter"><code>...</code></em>);</pre>
<p>Gets the value of one or more cells in the row referenced by <em class="parameter"><code>iter</code></em>
.
The variable argument list should contain integer column numbers,
each column number followed by a place to store the value being
retrieved.  The list is terminated by a -1. For example, to get a
value from column 0 with type <code class="literal">G_TYPE_STRING</code>, you would
write: <code class="literal">gtk_tree_model_get (model, iter, 0, &amp;amp;place_string_here, -1)</code>,
where <code class="literal">place_string_here</code> is a <span class="type">gchararray</span>
to be filled with the string.</p>
<p>Returned values with type <code class="literal">G_TYPE_OBJECT</code> have to be unreferenced,
values with type <code class="literal">G_TYPE_STRING</code> or <code class="literal">G_TYPE_BOXED</code> have to be freed.
Other values are passed by value.</p>
<div class="refsect3">
<a name="gtk-tree-model-get.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a row in <em class="parameter"><code>tree_model</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>...</p></td>
<td class="parameter_description"><p>pairs of column number and value return locations,
terminated by -1</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-get-valist"></a><h3>gtk_tree_model_get_valist ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_get_valist (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                           <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                           <em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);</pre>
<p>See <a class="link" href="GtkTreeModel.html#gtk-tree-model-get" title="gtk_tree_model_get ()"><code class="function">gtk_tree_model_get()</code></a>, this version takes a va_list
for language bindings to use.</p>
<div class="refsect3">
<a name="gtk-tree-model-get-valist.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a row in <em class="parameter"><code>tree_model</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>var_args</p></td>
<td class="parameter_description"><p>va_list of column/return location pairs</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-foreach"></a><h3>gtk_tree_model_foreach ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_foreach (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *model</code></em>,
                        <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeModelForeachFunc" title="GtkTreeModelForeachFunc ()"><span class="type">GtkTreeModelForeachFunc</span></a> func</code></em>,
                        <em class="parameter"><code><span class="type">gpointer</span> user_data</code></em>);</pre>
<p>Calls func on each node in model in a depth-first fashion.</p>
<p>If <em class="parameter"><code>func</code></em>
 returns <code class="literal">TRUE</code>, then the tree ceases to be walked,
and <a class="link" href="GtkTreeModel.html#gtk-tree-model-foreach" title="gtk_tree_model_foreach ()"><code class="function">gtk_tree_model_foreach()</code></a> returns.</p>
<div class="refsect3">
<a name="gtk-tree-model-foreach.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>a function to be called on each row. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="The callback is valid only during the call to the method."><span class="acronym">scope call</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data to passed to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-row-changed"></a><h3>gtk_tree_model_row_changed ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_row_changed (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                            <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                            <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Emits the <a class="link" href="GtkTreeModel.html#GtkTreeModel-row-changed" title="The “row-changed” signal"><span class="type">“row-changed”</span></a> signal on <em class="parameter"><code>tree_model</code></em>
.</p>
<div class="refsect3">
<a name="gtk-tree-model-row-changed.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> pointing to the changed row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the changed row</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-row-inserted"></a><h3>gtk_tree_model_row_inserted ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_row_inserted (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                             <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                             <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Emits the <a class="link" href="GtkTreeModel.html#GtkTreeModel-row-inserted" title="The “row-inserted” signal"><span class="type">“row-inserted”</span></a> signal on <em class="parameter"><code>tree_model</code></em>
.</p>
<div class="refsect3">
<a name="gtk-tree-model-row-inserted.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> pointing to the inserted row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the inserted row</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-row-has-child-toggled"></a><h3>gtk_tree_model_row_has_child_toggled ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_row_has_child_toggled (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                                      <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                                      <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>);</pre>
<p>Emits the <a class="link" href="GtkTreeModel.html#GtkTreeModel-row-has-child-toggled" title="The “row-has-child-toggled” signal"><span class="type">“row-has-child-toggled”</span></a> signal on
<em class="parameter"><code>tree_model</code></em>
. This should be called by models after the child
state of a node changes.</p>
<div class="refsect3">
<a name="gtk-tree-model-row-has-child-toggled.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> pointing to the changed row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the changed row</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-row-deleted"></a><h3>gtk_tree_model_row_deleted ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_row_deleted (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                            <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>);</pre>
<p>Emits the <a class="link" href="GtkTreeModel.html#GtkTreeModel-row-deleted" title="The “row-deleted” signal"><span class="type">“row-deleted”</span></a> signal on <em class="parameter"><code>tree_model</code></em>
.</p>
<p>This should be called by models after a row has been removed.
The location pointed to by <em class="parameter"><code>path</code></em>
 should be the location that
the row previously was at. It may not be a valid location anymore.</p>
<p>Nodes that are deleted are not unreffed, this means that any
outstanding references on the deleted node should not be released.</p>
<div class="refsect3">
<a name="gtk-tree-model-row-deleted.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> pointing to the previous location of
the deleted row</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-rows-reordered"></a><h3>gtk_tree_model_rows_reordered ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_rows_reordered (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                               <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                               <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                               <em class="parameter"><code><span class="type">gint</span> *new_order</code></em>);</pre>
<p>Emits the <a class="link" href="GtkTreeModel.html#GtkTreeModel-rows-reordered" title="The “rows-reordered” signal"><span class="type">“rows-reordered”</span></a> signal on <em class="parameter"><code>tree_model</code></em>
.</p>
<p>This should be called by models when their rows have been
reordered.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gtk-tree-model-rows-reordered.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> pointing to the tree node whose children
have been reordered</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the node whose children
have been reordered, or <code class="literal">NULL</code> if the depth of <em class="parameter"><code>path</code></em>
is 0</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>new_order</p></td>
<td class="parameter_description"><p>an array of integers mapping the current position of
each child to its old position before the re-ordering,
i.e. <em class="parameter"><code>new_order</code></em>
<code class="literal">[newpos] = oldpos</code></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gtk-tree-model-rows-reordered-with-length"></a><h3>gtk_tree_model_rows_reordered_with_length ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gtk_tree_model_rows_reordered_with_length
                               (<em class="parameter"><code><a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model</code></em>,
                                <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> *path</code></em>,
                                <em class="parameter"><code><a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> *iter</code></em>,
                                <em class="parameter"><code><span class="type">gint</span> *new_order</code></em>,
                                <em class="parameter"><code><span class="type">gint</span> length</code></em>);</pre>
<p>Emits the <a class="link" href="GtkTreeModel.html#GtkTreeModel-rows-reordered" title="The “rows-reordered” signal"><span class="type">“rows-reordered”</span></a> signal on <em class="parameter"><code>tree_model</code></em>
.</p>
<p>This should be called by models when their rows have been
reordered.</p>
<p><span class="annotation">[<acronym title="Rename the original symbol's name to SYMBOL."><span class="acronym">rename-to</span></acronym> gtk_tree_model_rows_reordered]</span></p>
<div class="refsect3">
<a name="gtk-tree-model-rows-reordered-with-length.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> pointing to the tree node whose children
have been reordered</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the node
whose children have been reordered, or <code class="literal">NULL</code> if the depth
of <em class="parameter"><code>path</code></em>
is 0. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>new_order</p></td>
<td class="parameter_description"><p>an array of integers
mapping the current position of each child to its old
position before the re-ordering,
i.e. <em class="parameter"><code>new_order</code></em>
<code class="literal">[newpos] = oldpos</code>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=length]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>length of <em class="parameter"><code>new_order</code></em>
array</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3-10.html#api-index-3.10">3.10</a></p>
</div>
</div>
<div class="refsect1">
<a name="GtkTreeModel.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GtkTreeModel-struct"></a><h3>GtkTreeModel</h3>
<pre class="programlisting">typedef struct _GtkTreeModel GtkTreeModel;</pre>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreeIter-struct"></a><h3>struct GtkTreeIter</h3>
<pre class="programlisting">struct GtkTreeIter {
  gint stamp;
  gpointer user_data;
  gpointer user_data2;
  gpointer user_data3;
};
</pre>
<p>The <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a> is the primary structure
for accessing a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>. Models are expected to put a unique
integer in the <em class="parameter"><code>stamp</code></em>
 member, and put
model-specific data in the three <em class="parameter"><code>user_data</code></em>

members.</p>
<div class="refsect3">
<a name="GtkTreeIter.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><span class="type">gint</span> <em class="structfield"><code><a name="GtkTreeIter-struct.stamp"></a>stamp</code></em>;</p></td>
<td class="struct_member_description"><p>a unique stamp to catch invalid iterators</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gpointer</span> <em class="structfield"><code><a name="GtkTreeIter-struct.user-data"></a>user_data</code></em>;</p></td>
<td class="struct_member_description"><p>model-specific data</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gpointer</span> <em class="structfield"><code><a name="GtkTreeIter-struct.user-data2"></a>user_data2</code></em>;</p></td>
<td class="struct_member_description"><p>model-specific data</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><span class="type">gpointer</span> <em class="structfield"><code><a name="GtkTreeIter-struct.user-data3"></a>user_data3</code></em>;</p></td>
<td class="struct_member_description"><p>model-specific data</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreePath-struct"></a><h3>GtkTreePath</h3>
<pre class="programlisting">typedef struct _GtkTreePath GtkTreePath;</pre>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreeRowReference"></a><h3>GtkTreeRowReference</h3>
<pre class="programlisting">typedef struct _GtkTreeRowReference GtkTreeRowReference;</pre>
<p>A GtkTreeRowReference tracks model changes so that it always refers to the
same row (a <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> refers to a position, not a fixed row). Create a
new GtkTreeRowReference with <a class="link" href="GtkTreeModel.html#gtk-tree-row-reference-new" title="gtk_tree_row_reference_new ()"><code class="function">gtk_tree_row_reference_new()</code></a>.</p>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreeModelIface"></a><h3>struct GtkTreeModelIface</h3>
<pre class="programlisting">struct GtkTreeModelIface {
  /* Signals */
  void         (* row_changed)           (GtkTreeModel *tree_model,
					  GtkTreePath  *path,
					  GtkTreeIter  *iter);
  void         (* row_inserted)          (GtkTreeModel *tree_model,
					  GtkTreePath  *path,
					  GtkTreeIter  *iter);
  void         (* row_has_child_toggled) (GtkTreeModel *tree_model,
					  GtkTreePath  *path,
					  GtkTreeIter  *iter);
  void         (* row_deleted)           (GtkTreeModel *tree_model,
					  GtkTreePath  *path);
  void         (* rows_reordered)        (GtkTreeModel *tree_model,
					  GtkTreePath  *path,
					  GtkTreeIter  *iter,
					  gint         *new_order);

  /* Virtual Table */
  GtkTreeModelFlags (* get_flags)  (GtkTreeModel *tree_model);

  gint         (* get_n_columns)   (GtkTreeModel *tree_model);
  GType        (* get_column_type) (GtkTreeModel *tree_model,
				    gint          index_);
  gboolean     (* get_iter)        (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter,
				    GtkTreePath  *path);
  GtkTreePath *(* get_path)        (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter);
  void         (* get_value)       (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter,
				    gint          column,
				    GValue       *value);
  gboolean     (* iter_next)       (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter);
  gboolean     (* iter_previous)   (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter);
  gboolean     (* iter_children)   (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter,
				    GtkTreeIter  *parent);
  gboolean     (* iter_has_child)  (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter);
  gint         (* iter_n_children) (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter);
  gboolean     (* iter_nth_child)  (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter,
				    GtkTreeIter  *parent,
				    gint          n);
  gboolean     (* iter_parent)     (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter,
				    GtkTreeIter  *child);
  void         (* ref_node)        (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter);
  void         (* unref_node)      (GtkTreeModel *tree_model,
				    GtkTreeIter  *iter);
};
</pre>
<div class="refsect3">
<a name="GtkTreeModelIface.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.row-changed"></a>row_changed</code></em> ()</p></td>
<td class="struct_member_description"><p>Signal emitted when a row in the model has changed.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.row-inserted"></a>row_inserted</code></em> ()</p></td>
<td class="struct_member_description"><p>Signal emitted when a new row has been inserted in
the model.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.row-has-child-toggled"></a>row_has_child_toggled</code></em> ()</p></td>
<td class="struct_member_description"><p>Signal emitted when a row has gotten the
first child row or lost its last child row.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.row-deleted"></a>row_deleted</code></em> ()</p></td>
<td class="struct_member_description"><p>Signal emitted when a row has been deleted.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.rows-reordered"></a>rows_reordered</code></em> ()</p></td>
<td class="struct_member_description"><p>Signal emitted when the children of a node in the
GtkTreeModel have been reordered.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.get-flags"></a>get_flags</code></em> ()</p></td>
<td class="struct_member_description"><p>Get <a class="link" href="GtkTreeModel.html#GtkTreeModelFlags" title="enum GtkTreeModelFlags"><span class="type">GtkTreeModelFlags</span></a> supported by this interface.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.get-n-columns"></a>get_n_columns</code></em> ()</p></td>
<td class="struct_member_description"><p>Get the number of columns supported by the model.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.get-column-type"></a>get_column_type</code></em> ()</p></td>
<td class="struct_member_description"><p>Get the type of the column.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.get-iter"></a>get_iter</code></em> ()</p></td>
<td class="struct_member_description"><p>Sets iter to a valid iterator pointing to path.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.get-path"></a>get_path</code></em> ()</p></td>
<td class="struct_member_description"><p>Gets a newly-created <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a> referenced by iter.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.get-value"></a>get_value</code></em> ()</p></td>
<td class="struct_member_description"><p>Initializes and sets value to that at column.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.iter-next"></a>iter_next</code></em> ()</p></td>
<td class="struct_member_description"><p>Sets iter to point to the node following it at the
current level.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.iter-previous"></a>iter_previous</code></em> ()</p></td>
<td class="struct_member_description"><p>Sets iter to point to the previous node at the
current level.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.iter-children"></a>iter_children</code></em> ()</p></td>
<td class="struct_member_description"><p>Sets iter to point to the first child of parent.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.iter-has-child"></a>iter_has_child</code></em> ()</p></td>
<td class="struct_member_description"><p><code class="literal">TRUE</code> if iter has children, <code class="literal">FALSE</code> otherwise.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.iter-n-children"></a>iter_n_children</code></em> ()</p></td>
<td class="struct_member_description"><p>Gets the number of children that iter has.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.iter-nth-child"></a>iter_nth_child</code></em> ()</p></td>
<td class="struct_member_description"><p>Sets iter to be the child of parent, using the
given index.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.iter-parent"></a>iter_parent</code></em> ()</p></td>
<td class="struct_member_description"><p>Sets iter to be the parent of child.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.ref-node"></a>ref_node</code></em> ()</p></td>
<td class="struct_member_description"><p>Lets the tree ref the node.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GtkTreeModelIface.unref-node"></a>unref_node</code></em> ()</p></td>
<td class="struct_member_description"><p>Lets the tree unref the node.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreeModelFlags"></a><h3>enum GtkTreeModelFlags</h3>
<p>These flags indicate various properties of a <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a>.</p>
<p>They are returned by <a class="link" href="GtkTreeModel.html#gtk-tree-model-get-flags" title="gtk_tree_model_get_flags ()"><code class="function">gtk_tree_model_get_flags()</code></a>, and must be
static for the lifetime of the object. A more complete description
of <a class="link" href="GtkTreeModel.html#GTK-TREE-MODEL-ITERS-PERSIST:CAPS"><span class="type">GTK_TREE_MODEL_ITERS_PERSIST</span></a> can be found in the overview of
this section.</p>
<div class="refsect3">
<a name="GtkTreeModelFlags.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GTK-TREE-MODEL-ITERS-PERSIST:CAPS"></a>GTK_TREE_MODEL_ITERS_PERSIST</p></td>
<td class="enum_member_description">
<p>iterators survive all signals
emitted by the tree</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GTK-TREE-MODEL-LIST-ONLY:CAPS"></a>GTK_TREE_MODEL_LIST_ONLY</p></td>
<td class="enum_member_description">
<p>the model is a list only, and never
has children</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="GtkTreeModel.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GtkTreeModel-row-changed"></a><h3>The <code class="literal">“row-changed”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model,
               <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a>  *path,
               <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a>  *iter,
               <span class="type">gpointer</span>      user_data)</pre>
<p>This signal is emitted when a row in the model has changed.</p>
<div class="refsect3">
<a name="GtkTreeModel-row-changed.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> on which the signal is emitted</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> identifying the changed row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the changed row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run Last</p>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreeModel-row-deleted"></a><h3>The <code class="literal">“row-deleted”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model,
               <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a>  *path,
               <span class="type">gpointer</span>      user_data)</pre>
<p>This signal is emitted when a row has been deleted.</p>
<p>Note that no iterator is passed to the signal handler,
since the row is already deleted.</p>
<p>This should be called by models after a row has been removed.
The location pointed to by <em class="parameter"><code>path</code></em>
 should be the location that
the row previously was at. It may not be a valid location anymore.</p>
<div class="refsect3">
<a name="GtkTreeModel-row-deleted.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> on which the signal is emitted</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> identifying the row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run First</p>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreeModel-row-has-child-toggled"></a><h3>The <code class="literal">“row-has-child-toggled”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model,
               <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a>  *path,
               <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a>  *iter,
               <span class="type">gpointer</span>      user_data)</pre>
<p>This signal is emitted when a row has gotten the first child
row or lost its last child row.</p>
<div class="refsect3">
<a name="GtkTreeModel-row-has-child-toggled.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> on which the signal is emitted</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> identifying the row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run Last</p>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreeModel-row-inserted"></a><h3>The <code class="literal">“row-inserted”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model,
               <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a>  *path,
               <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a>  *iter,
               <span class="type">gpointer</span>      user_data)</pre>
<p>This signal is emitted when a new row has been inserted in
the model.</p>
<p>Note that the row may still be empty at this point, since
it is a common pattern to first insert an empty row, and
then fill it with the desired values.</p>
<div class="refsect3">
<a name="GtkTreeModel-row-inserted.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> on which the signal is emitted</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> identifying the new row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the new row</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run First</p>
</div>
<hr>
<div class="refsect2">
<a name="GtkTreeModel-rows-reordered"></a><h3>The <code class="literal">“rows-reordered”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> *tree_model,
               <a class="link" href="GtkTreeModel.html#GtkTreePath"><span class="type">GtkTreePath</span></a>  *path,
               <a class="link" href="GtkTreeModel.html#GtkTreeIter"><span class="type">GtkTreeIter</span></a>  *iter,
               <span class="type">gpointer</span>      new_order,
               <span class="type">gpointer</span>      user_data)</pre>
<p>This signal is emitted when the children of a node in the
<a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> have been reordered.</p>
<p>Note that this signal is not emitted
when rows are reordered by DND, since this is implemented
by removing and then reinserting the row.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="GtkTreeModel-rows-reordered.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>tree_model</p></td>
<td class="parameter_description"><p>the <a class="link" href="GtkTreeModel.html" title="GtkTreeModel"><span class="type">GtkTreeModel</span></a> on which the signal is emitted</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>path</p></td>
<td class="parameter_description"><p>a <a class="link" href="GtkTreeModel.html#GtkTreePath-struct" title="GtkTreePath"><span class="type">GtkTreePath</span></a> identifying the tree node whose children
have been reordered</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>iter</p></td>
<td class="parameter_description"><p>a valid <a class="link" href="GtkTreeModel.html#GtkTreeIter-struct" title="struct GtkTreeIter"><span class="type">GtkTreeIter</span></a> pointing to the node whose children
have been reordered, or <code class="literal">NULL</code> if the depth of <em class="parameter"><code>path</code></em>
is 0</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>new_order</p></td>
<td class="parameter_description"><p>an array of integers mapping the current position
of each child to its old position before the re-ordering,
i.e. <em class="parameter"><code>new_order</code></em>
<code class="literal">[newpos] = oldpos</code></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: Run First</p>
</div>
</div>
<div class="refsect1">
<a name="GtkTreeModel.see-also"></a><h2>See Also</h2>
<p><a class="link" href="GtkTreeView.html" title="GtkTreeView"><span class="type">GtkTreeView</span></a>, <a class="link" href="GtkTreeStore.html" title="GtkTreeStore"><span class="type">GtkTreeStore</span></a>, <a class="link" href="GtkListStore.html" title="GtkListStore"><span class="type">GtkListStore</span></a>,
<a class="link" href="gtk3-GtkTreeView-drag-and-drop.html" title="GtkTreeView drag-and-drop">GtkTreeView drag-and-drop</a>
<a class="link" href="GtkTreeSortable.html" title="GtkTreeSortable"><span class="type">GtkTreeSortable</span></a></p>
</div>
</div>
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